Zoner's Half-Life compile tools offer many improvements over the original map compiling tools for Half-Life, such as better lighting quality, faster vis times, switchable texture based lighting, support for brush entities casting shadows, removal of "sticky" edges, support for 64-bit processors, and much more. Please note that these tools are for use with the Half-Life 1 engine (also known as GoldSrc or GoldSource), not for the Source Engine used in Half- Life 2. For the Source Engine, refer to Custom Source Tools (CST). WWW: http://zhlt.info/